Update docker-compose.yml

add security flags

examples/send/docker-compose.yml

@@ -7,6 +7,11 @@ services:
     #image: l4rm4nd/send:latest # image of a fork with darkmode only
     container_name: send-app
     restart: unless-stopped
+    read_only: true
+    security_opt:
+      - no-new-privileges:true
+    cap_drop:
+      - ALL    
     ports:
       - 1234:1234
     expose: